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Localization and radiofrequency catheter ablation of left-sided accessory pathway during atrial fibrillation


, : Localization and radiofrequency catheter ablation of left-sided accessory pathway during atrial fibrillation. Archivos del Instituto de Cardiologia de Mexico 68(2): 113-118, March-April

The occurrence of atrial fibrillation during an electrophysiologic study in patients with Wolff-Parkinson-White syndrome is a common problem and it is time-consuming to terminate it either with the use of drugs or by electrical cardioversion. The purpose of this report is to assess the feasibility of successful radiofrequency catheter ablation of and mapping for overt left-sided accessory pathway during atrial fibrillation. During an electrophysiologic study, pre-excitation was lost and the patient developed sustained atrial fibrillation either spontaneously or during catheter manipulation. We decided to map during this arrythmia because we noted that the patient had maximally pre-excited beats which might increase the possibility of accessory pathway potential recording and a successful ablation site. With the ablation catheter in the left-lateral region we recorded an early ventricular electrogram and a rapid deflection preceding the onset of ventricular activation that was not observed in non pre-excited beats and we considered it the Kent potential. At this site we applied one pulse of radiofrequency current with temperature control at 70degreeC and eliminated anterograde conduction over the accessory pathway during the first 3 seconds and continue the radiofrequency current for a total of 2 minutes. The procedure time was 60 minutes. We conclude that mapping and radiofrequency catheter ablation can be successfully performed during pre-excited atrial fibrillation and this could shorten the procedure and obviate the need for several electrical cardioversions.

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Other references

Li, W.; Li, Y.; Guan, S., 2007: Extracellular heat shock protein-90a: linking hypoxia to skin cell motility and wound healing. The EMBO Journal 26(5): 21-33

Seidel, M.E.; Green, N.B., 1981: Geographic distribution. Testudines, Pseudemys scripta elegans. Herpetological Review 12.2: 64

Eckenhoff, J.E., 1953: Relationship of anesthesia to postoperative personality changes in children. A.M.A. American Journal of Diseases of Children 86(5): 587-591

Morin A.M.; Hattori H.; Wasterlain C.G.; Thomson D., 1989: Tritium mk 801 binding sites in neonate rat brain. [3H]MK-801 binding sites are present in neonate rat brain as early as 3 days after birth. Immature hippocampus and cortex contain approximately one sixth the concentration of binding sites of the adult, while brainstem concentration is twice as hi...

Schiller, P.W.; Weltrowska, G.; Nguyen, T.M.; Lemieux, C.; Chung, N.N.; Marsden, B.J.; Wilkes, B.C., 1991: Conformational restriction of the phenylalanine residue in a cyclic opioid peptide analogue: effects on receptor selectivity and stereospecificity. In an effort to determine the effect of side chain conformational restriction on opioid receptor selectivity, the cyclic phenylalanine analogues 2-aminoindan-2-carboxylic acid (Aic), 2-aminotetralin-2-carboxylic acid (Atc), and tetrahydroisoquinol...

Torrance, H.B.; Watson, A., 1969: Bilious vomiting after gastric surgery. Journal of the Royal College of Surgeons of Edinburgh 14(3): 161-164

Zhukova, Natalya F., 2001: The activity of the digestive enzymes from the viewpoint of the feeding ecology of insectivorous bats. In this study we have e[alpha]amined the activity of ([alpha]-amylase, acide and alcaline phosphatases and proteases of different organs of the digestive system in four species of insectivorous bats [Nyctalus noctula (Schreber, 1774); Myotis blyth...

Newton, T.J.; Bartsch, M.R., 2007: Lethal and sublethal effects of ammonia to juvenile Lampsilis mussels (Unionidae) in sediment and water-only exposures. We compared the sensitivity of two juvenile unionid mussels (Lampsilis cardium and Lampsilis higginsii) to ammonia in 96-h water-only and sediment tests by use of mortality and growth measurements. Twenty mussels were placed in chambers buried 2.5...

Xiao, N.; Cao, D-Sheng.; Zhu, M-Feng.; Xu, Q-Song., 2015: protr/ProtrWeb: R package and web server for generating various numerical representation schemes of protein sequences. Amino acid sequence-derived structural and physiochemical descriptors are extensively utilized for the research of structural, functional, expression and interaction profiles of proteins and peptides. We developed protr, a comprehensive R package...

Liesnard, C.; Delforge, M.L.; Tchetcheroff, M.; Farber, C.M.; Van Vooren, J.P., 1995: Plasma viremia as a marker of therapy failure in HIV patients treated by antiretroviral monotherapy. Abstracts of the Interscience Conference on Antimicrobial Agents & Chemotherapy 35(0): 232